Home / 116,696.72-174,782.40-81,792.20

Finding the Fourth Proportional to 116,696.72, 174,782.40 and 81,792.20

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Solution

The fourth proportional to 116,696.72, 174,782.40 and 81,792.20 is: 122,504.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,696.72 : 174,782.40 = 81,792.20 : x
  2. Step 2: Convert to fraction form
    116,696.72/174,782.40 = 81,792.20/x
  3. Step 3: Cross multiply
    116,696.72x = 174,782.40 × 81,792.20
  4. Step 4: Simplify right side
    116,696.72x = 14,295,837,017.28
  5. Step 5: Solve for x
    x = 14,295,837,017.28/116,696.72
  6. Step 6: Final answer
    x = 122,504.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.